Home / 20,694.90-28,559.56-11,264.06

Finding the Fourth Proportional to 20,694.90, 28,559.56 and 11,264.06

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Solution

The fourth proportional to 20,694.90, 28,559.56 and 11,264.06 is: 15,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.90 : 28,559.56 = 11,264.06 : x
  2. Step 2: Convert to fraction form
    20,694.90/28,559.56 = 11,264.06/x
  3. Step 3: Cross multiply
    20,694.90x = 28,559.56 × 11,264.06
  4. Step 4: Simplify right side
    20,694.90x = 321,696,597.41
  5. Step 5: Solve for x
    x = 321,696,597.41/20,694.90
  6. Step 6: Final answer
    x = 15,544.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.